XII, D, 4 Wileman: Japanese Lepidoptera 241 



lulars, and one on the costa of forewing. This interrupted ante- 

 medial band is more complete in variety 4, maculalis (see the 

 following- paragraph), in which it is interrupted between veins 

 3 and 6 at the point where is should bend inward to the costa like 

 the postmedial band. 



Variety 4 (Plate II, figs. 8 and 9), maculalis var. nov., collection 

 Wileman No. 269e. Heavily maculated; the antemedial band 

 continues nearly to vein 3, where it is interrupted and then con- 

 tinues in two spots, one discocellular and one on the costa; on 

 the hindwing a well-defined, submarginal band of spots, which 

 is continuous in some specimens from inner angle to apex, inter- 

 rupted in others; discoidal spots very prominent. 



A comparison of the immaculate form, var. 1, immaculalis, with 

 the heavily maculated form, var. 4, maculalis, leads one almost 

 to believe that they are two different species unless in possession 

 of a long series showing the intergrades between the two forms. 

 Taking into consideration the great variability of the female, 

 I think it is unnecessary to give names to varieties 2 and 3. 



I have captured Diacrisia infernalis, both male and female, in 

 some numbers at Junsai Numa (Junsai Lake), near Hakodate, 

 Hokkaido (Yezo). The female, as also recorded by Miyake, 

 covers the ova with hairs from the anal tuft. The male has a 

 peculiar gyrating flight and on sunny days can be seen careering 

 round the tops of low trees and then suddenly disappearing for 

 a rest. I also found many males (which, like Diacrisia imparilis, 

 are blackish brown) in copula with females in the woods about 

 Junsai Numa, lying exposed on the low herbage. 



Local distrihution. — Honshu: Nikko, Shimotsuke Province, 

 July and August (Wileman) ; Kobe, Settsu Province, July {Wile- 

 man) ; Myanoshita, Sagami Province, June {Wileman) ; Oiwake, 

 Shinano Province, 3 males, 1 female in the British Museum col- 

 lection {Pryer) . Hokkaido: Hakodate, Junsai Numa, Oshima 

 Province, July and August {Wilem^an) ; Jozankei, near Sapporo, 

 Ishikari Province, August {Wileman) . I captured 23 male and 

 18 female specimens at the above localities in June, July, and 

 August of different years. 



Miyake says: "Not very rare in Hokkaido and Hondo; I have 

 received some specimens captured in Tokyo." 



Matsumura records the species from Honshu and Hokkaido 

 and says that it is common at Sapporo, Hokkaido. 



TiTYie of appearance. — Larva, May to October, hibernates? 

 Imago, June to August. Single-brooded? 



General distrihution. — Japan only. {Seitz.) 



